Device for forming glass cylinders for window-glass.



U. HOUZE.

DEVICE FOR FORMING GLASS CYLINDERS FOR WINDOW GLASS. APPLICATION FILED DEO.24, 191? 1, 1 28,269, Patented Feb. 9, 1915.

my] X1 ULGISSE HOUZE, F POMONA, CALIFORNIA IBEVZCE F6133 FGRMIIEF} GLASS CYLIN FORv WINDOW-GLASS.

Specification of Letters Patent.

Application filed December 2d, 1912. Serial No. 739,568.

1 all whom it may concern.

Be it known that I, ULoissn'Hoozn, a citizen of the United States, residing at Pomona, in the county of Los Angeles and State of California, have invented a new anduseful Device for Forming. Glass Cylinders for WlIlClOW-Gl3.SS, of which the following is a specification.

My inventionrelates to devices for forming glass cylinders for the manufacture of window glass and an object is to provide a means of cooling the glass cylinders as they are withdrawn from the furnace or glass tank; another object is to provide a means which will serve to eliminate the necessity of frequently removing the thiinbles from the top of the tank for exterior cooling purposes.

Other objects may appear in the subjoined detailed description of which' Figure 1 is a plan of a glass tank showing my thimbles or cooling devices in position; Fig. 2 is a sectional elevation on the line w ac Fig. 1 showing a floating receptacle in position in the tank and the relative position of the latter with respect to the thimbles during a glass drawing operation; Fig. 3 is an enlarged sectional elevation of the thimbles in the same position as shown in Fig. 2 but shown more clearly; Fig. 4 is a plan of the thimble with a portion of theflange broken away; Fig. 5 is a bottom view of the thimbles showing the supporting. lugs.

Similar reference numerals indicate the same parts throughout the specifications and the several views of the drawings.

I am aware of patents having been grant,

ed upon numerous devices for forming glass cylinders and for cooling the same as they are formed, but the cooling process has involved the use of water for such purposes, whereas my device eliminates any eirtra connections, such as for water etc., and involves the use of air for accomplishing the desired result.

in the drawings, I show enough of the other elements which enter into the art of glass making to properly illustrate the value =Jand use of my device, and in which 1 is a common type of glass tank furnace having the hooded tops 2 and 3 at right angles to each other, the projection 3 serving as a means of connection to a larger central tank common to a plurality of tanks of the character shown. On each side of the longitudinal hooded section) are the flat top surfaces it provided with the circular openings 5, said openings generally being arranged in pairs across the tank atright angles to the longitudinal center line thereof for convenience in transferring a float from one side to the other of the tank in successive glass forming operations. The thimbles 6 are double walled and are provided with the annular air chamber 7 between the walls, the central openings 8, the perforations 9 in the inner wall communicating with'the air chamber 7 the outwardly extending hollow lip 10 the racemes Feb. 9, rarer I openingor passage of which is connected with the air chamber 7 and serves as an air inlet, the flange 11 and the lugs 12 on the bottom of the flange and adapted to rest upon the top surface 4: of the tank when the thimbles are in proper position for drawing a cylinder. A suitable air supply tube connected with an air tank or compressor may be pressed on the lip 10 as shown in Fig. 3

or the air supply may be otherwise suitably connected thereto.

7 The thimbles 6 are adapted to seat removably in the openings 5 on the-top 4 of the tank and they may be used in any style of tank or in connection with any form of float, but for convenience I show them in connection with the form of float invented by me and claimed iii an. application filed Feb. 9, 1914, Serial No. 819,096. The floating receptacle 13 is adapted to float on the molten glass with its top a little above the level ofthe glass and the body proper submerged in the glass. It is provided with two chambers, one on each end which are provided with outlets on the side of the floats'communicating with the molten glass in the/tank. These floats are adapted to be drawn from one side of the tank to the other by means of the iron rods 14 slidably positioned in the'sides of the tank, the chamber on one end of the float being adapted to register with a thimble on oneside of the tank when it is drawn over to that side of the tank and the chamber on the other endof the float is adapted to register with the opposite thimble on the other side of the tank'when the float is drawn to that side.

In operation, the fioatbeing drawn over to the side of the tank so that the chamber therein will register with its respective thimble, a glass blowing tube is inserted in the thimhle and the chamber in the float so that the pressure in the tube will force the glass 11 through the chamber and the thiinble in the "I i 1w ales miwsen she Wan in ilie event that it shuuld 52mins necessary rs iii:- 1e 'cm'ni mtion WU l1 a tank haw iiig & fibziting reaeptacls 'ishereim {himliqli: adapted is be remoyably inserts-i in the mp, 0i ,116. to exbexid downward "ii tank to a paint E6221" racspiacle and is register therewiih, and said "Lhimble having ceniial opening 13? irougli which acylinclei' cf is admitetil tabs formed :in iniisr an an outer wall and 2,1; annular air passage formed fliers b stwg s en, an (iiltwardly projecting lip at the amp of szihi thimble having a passage comiii'uflicaing with airl annular dams 6mg a curren; 0i. fir 1 air suppl sails tlieretc and a v 2y of EH51" f0 dons in said inner wall ail'on'l' muniuatiqn between said 2min and sairl central openi g far (i cuiirenl; of air against said cylinder as it 1 formed, for cooling it, as described.

2. In a device for fuming glass 052511 cigars, the combination w. .1

having floating i-ecsp is tliersiii, 0i" izlilmble adapteq. "0 is 1 he 50p of extend mvmvardlly Liosaiyl tank ta :1 Elm int Rem-ills 033 0;? saia flcg tiiig receptacle and the register with, tliimble lia-vmg Swiss ojgsniw fiiii'ougli which cylinder 0f glass lied to be 'fm'msd, an inner and an will and annular air passa med 'tliei'ebetWeen an outwardly projec'sii at the $01 0i said tiiii'nble having massage communicatingwith said annular sszige for admitting a current 0f air from all air suy gl y means thereto, a plurality of loi'abions in said. inner wall. affording communicaivion between said annular pas and said central opening for clirecsizig (l c urissit 0i z ii' 'gaii'is; said cylinder as is fol-meal, for cooling it, and a flanged top saiil aliimble, as described.

3D In device for forming glass 0ylinthe combinaiion with a glass tank hasim: a floating iscepiacle therein, (if P. thizm his aclaiptfsd. to bei'wmcvzilfly inserted in Lhe top 0 116. to extend dmvnxvardly into said. 'lzflili to a pail llqftl' the top of said limiting re @pmcle and to register therewith, and saici thimiale having :1 central opening tl i-augli which a cylinder of glass is adapted to ba formed, an inner and. an outer will mail an annular all passage formed them befiwesn, an outwardly projecting hp at the top of said illlllllbl having a passage com inunica ing with said annular passage for 21(. lg a current of air from an air sup- 1 iiiezms tl'iei'eio a plurality of perforalii ii saul inner Willi affording communi- EYES sa H1 in. nooigs'ilivisn, 

